72686327 has 4 divisors (see below), whose sum is σ = 83070096. Its totient is φ = 62302560.

The previous prime is 72686311. The next prime is 72686347. The reversal of 72686327 is 72368627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72686327 - 2⁴ = 72686311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72686347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5191874 + ... + 5191887.

It is an arithmetic number, because the mean of its divisors is an integer number (20767524).

Almost surely, 2^72686327 is an apocalyptic number.

72686327 is a deficient number, since it is larger than the sum of its proper divisors (10383769).

72686327 is a wasteful number, since it uses less digits than its factorization.

72686327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10383768.

The product of its digits is 169344, while the sum is 41.

The square root of 72686327 is about 8525.6276601785. The cubic root of 72686327 is about 417.3344547877.

The spelling of 72686327 in words is "seventy-two million, six hundred eighty-six thousand, three hundred twenty-seven".